Home / 105,387.60-145,437.36-60,069.79

Finding the Fourth Proportional to 105,387.60, 145,437.36 and 60,069.79

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Solution

The fourth proportional to 105,387.60, 145,437.36 and 60,069.79 is: 82,897.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,387.60 : 145,437.36 = 60,069.79 : x
  2. Step 2: Convert to fraction form
    105,387.60/145,437.36 = 60,069.79/x
  3. Step 3: Cross multiply
    105,387.60x = 145,437.36 × 60,069.79
  4. Step 4: Simplify right side
    105,387.60x = 8,736,391,673.35
  5. Step 5: Solve for x
    x = 8,736,391,673.35/105,387.60
  6. Step 6: Final answer
    x = 82,897.72

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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.