Home / 148,116.41-204,312.90-90,781.46

Finding the Fourth Proportional to 148,116.41, 204,312.90 and 90,781.46

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Solution

The fourth proportional to 148,116.41, 204,312.90 and 90,781.46 is: 125,224.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,116.41 : 204,312.90 = 90,781.46 : x
  2. Step 2: Convert to fraction form
    148,116.41/204,312.90 = 90,781.46/x
  3. Step 3: Cross multiply
    148,116.41x = 204,312.90 × 90,781.46
  4. Step 4: Simplify right side
    148,116.41x = 18,547,823,358.83
  5. Step 5: Solve for x
    x = 18,547,823,358.83/148,116.41
  6. Step 6: Final answer
    x = 125,224.63

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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.