Home / 100,312.22-138,445.07-62,084.07

Finding the Fourth Proportional to 100,312.22, 138,445.07 and 62,084.07

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Solution

The fourth proportional to 100,312.22, 138,445.07 and 62,084.07 is: 85,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,312.22 : 138,445.07 = 62,084.07 : x
  2. Step 2: Convert to fraction form
    100,312.22/138,445.07 = 62,084.07/x
  3. Step 3: Cross multiply
    100,312.22x = 138,445.07 × 62,084.07
  4. Step 4: Simplify right side
    100,312.22x = 8,595,233,106.61
  5. Step 5: Solve for x
    x = 8,595,233,106.61/100,312.22
  6. Step 6: Final answer
    x = 85,684.80

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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.