Home / 176,109.16-243,030.64-100,659.28

Finding the Fourth Proportional to 176,109.16, 243,030.64 and 100,659.28

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Solution

The fourth proportional to 176,109.16, 243,030.64 and 100,659.28 is: 138,909.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,109.16 : 243,030.64 = 100,659.28 : x
  2. Step 2: Convert to fraction form
    176,109.16/243,030.64 = 100,659.28/x
  3. Step 3: Cross multiply
    176,109.16x = 243,030.64 × 100,659.28
  4. Step 4: Simplify right side
    176,109.16x = 24,463,287,521.89
  5. Step 5: Solve for x
    x = 24,463,287,521.89/176,109.16
  6. Step 6: Final answer
    x = 138,909.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.