Home / 143,932,109.40-215,898,164.10-82,710,106.20

Finding the Fourth Proportional to 143,932,109.40, 215,898,164.10 and 82,710,106.20

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Solution

The fourth proportional to 143,932,109.40, 215,898,164.10 and 82,710,106.20 is: 124,065,159.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,932,109.40 : 215,898,164.10 = 82,710,106.20 : x
  2. Step 2: Convert to fraction form
    143,932,109.40/215,898,164.10 = 82,710,106.20/x
  3. Step 3: Cross multiply
    143,932,109.40x = 215,898,164.10 × 82,710,106.20
  4. Step 4: Simplify right side
    143,932,109.40x = 17,856,960,081,096,028
  5. Step 5: Solve for x
    x = 17,856,960,081,096,028/143,932,109.40
  6. Step 6: Final answer
    x = 124,065,159.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.