Home / 148,397.86-204,781.80-83,868.40

Finding the Fourth Proportional to 148,397.86, 204,781.80 and 83,868.40

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Solution

The fourth proportional to 148,397.86, 204,781.80 and 83,868.40 is: 115,734.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,397.86 : 204,781.80 = 83,868.40 : x
  2. Step 2: Convert to fraction form
    148,397.86/204,781.80 = 83,868.40/x
  3. Step 3: Cross multiply
    148,397.86x = 204,781.80 × 83,868.40
  4. Step 4: Simplify right side
    148,397.86x = 17,174,721,915.12
  5. Step 5: Solve for x
    x = 17,174,721,915.12/148,397.86
  6. Step 6: Final answer
    x = 115,734.30

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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.