Home / 102,275.96-141,117.03-61,980.89

Finding the Fourth Proportional to 102,275.96, 141,117.03 and 61,980.89

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Solution

The fourth proportional to 102,275.96, 141,117.03 and 61,980.89 is: 85,519.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,275.96 : 141,117.03 = 61,980.89 : x
  2. Step 2: Convert to fraction form
    102,275.96/141,117.03 = 61,980.89/x
  3. Step 3: Cross multiply
    102,275.96x = 141,117.03 × 61,980.89
  4. Step 4: Simplify right side
    102,275.96x = 8,746,558,407.97
  5. Step 5: Solve for x
    x = 8,746,558,407.97/102,275.96
  6. Step 6: Final answer
    x = 85,519.21

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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.