Home / 112,864.85-155,752.63-61,876.97

Finding the Fourth Proportional to 112,864.85, 155,752.63 and 61,876.97

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Solution

The fourth proportional to 112,864.85, 155,752.63 and 61,876.97 is: 85,389.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,864.85 : 155,752.63 = 61,876.97 : x
  2. Step 2: Convert to fraction form
    112,864.85/155,752.63 = 61,876.97/x
  3. Step 3: Cross multiply
    112,864.85x = 155,752.63 × 61,876.97
  4. Step 4: Simplify right side
    112,864.85x = 9,637,499,880.48
  5. Step 5: Solve for x
    x = 9,637,499,880.48/112,864.85
  6. Step 6: Final answer
    x = 85,389.74

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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.