Home / 112,599.71-155,385.20-61,612.23

Finding the Fourth Proportional to 112,599.71, 155,385.20 and 61,612.23

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Solution

The fourth proportional to 112,599.71, 155,385.20 and 61,612.23 is: 85,023.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,599.71 : 155,385.20 = 61,612.23 : x
  2. Step 2: Convert to fraction form
    112,599.71/155,385.20 = 61,612.23/x
  3. Step 3: Cross multiply
    112,599.71x = 155,385.20 × 61,612.23
  4. Step 4: Simplify right side
    112,599.71x = 9,573,628,681.00
  5. Step 5: Solve for x
    x = 9,573,628,681.00/112,599.71
  6. Step 6: Final answer
    x = 85,023.56

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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.