Home / 144,019.19-198,691.04-90,210.53

Finding the Fourth Proportional to 144,019.19, 198,691.04 and 90,210.53

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Solution

The fourth proportional to 144,019.19, 198,691.04 and 90,210.53 is: 124,455.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,019.19 : 198,691.04 = 90,210.53 : x
  2. Step 2: Convert to fraction form
    144,019.19/198,691.04 = 90,210.53/x
  3. Step 3: Cross multiply
    144,019.19x = 198,691.04 × 90,210.53
  4. Step 4: Simplify right side
    144,019.19x = 17,924,022,580.14
  5. Step 5: Solve for x
    x = 17,924,022,580.14/144,019.19
  6. Step 6: Final answer
    x = 124,455.80

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1.5x scale

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.