Home / 90,463.31-125,411.15-85,664.23

Finding the Fourth Proportional to 90,463.31, 125,411.15 and 85,664.23

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Solution

The fourth proportional to 90,463.31, 125,411.15 and 85,664.23 is: 118,758.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,463.31 : 125,411.15 = 85,664.23 : x
  2. Step 2: Convert to fraction form
    90,463.31/125,411.15 = 85,664.23/x
  3. Step 3: Cross multiply
    90,463.31x = 125,411.15 × 85,664.23
  4. Step 4: Simplify right side
    90,463.31x = 10,743,248,971.11
  5. Step 5: Solve for x
    x = 10,743,248,971.11/90,463.31
  6. Step 6: Final answer
    x = 118,758.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.