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Finding the Fourth Proportional to 119,973.40, 179,700.90 and 99,237.40

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Solution

The fourth proportional to 119,973.40, 179,700.90 and 99,237.40 is: 148,641.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,973.40 : 179,700.90 = 99,237.40 : x
  2. Step 2: Convert to fraction form
    119,973.40/179,700.90 = 99,237.40/x
  3. Step 3: Cross multiply
    119,973.40x = 179,700.90 × 99,237.40
  4. Step 4: Simplify right side
    119,973.40x = 17,833,050,093.66
  5. Step 5: Solve for x
    x = 17,833,050,093.66/119,973.40
  6. Step 6: Final answer
    x = 148,641.70

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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.