Home / 100,445.46-138,602.76-59,603.10

Finding the Fourth Proportional to 100,445.46, 138,602.76 and 59,603.10

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Solution

The fourth proportional to 100,445.46, 138,602.76 and 59,603.10 is: 82,245.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,445.46 : 138,602.76 = 59,603.10 : x
  2. Step 2: Convert to fraction form
    100,445.46/138,602.76 = 59,603.10/x
  3. Step 3: Cross multiply
    100,445.46x = 138,602.76 × 59,603.10
  4. Step 4: Simplify right side
    100,445.46x = 8,261,154,164.56
  5. Step 5: Solve for x
    x = 8,261,154,164.56/100,445.46
  6. Step 6: Final answer
    x = 82,245.17

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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.