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Finding the Fourth Proportional to 105,689.70, 145,852.98 and 60,373.68

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Solution

The fourth proportional to 105,689.70, 145,852.98 and 60,373.68 is: 83,316.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,689.70 : 145,852.98 = 60,373.68 : x
  2. Step 2: Convert to fraction form
    105,689.70/145,852.98 = 60,373.68/x
  3. Step 3: Cross multiply
    105,689.70x = 145,852.98 × 60,373.68
  4. Step 4: Simplify right side
    105,689.70x = 8,805,681,141.57
  5. Step 5: Solve for x
    x = 8,805,681,141.57/105,689.70
  6. Step 6: Final answer
    x = 83,316.36

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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.