Home / 105,385.20-145,435.32-60,070.02

Finding the Fourth Proportional to 105,385.20, 145,435.32 and 60,070.02

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Solution

The fourth proportional to 105,385.20, 145,435.32 and 60,070.02 is: 82,898.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,385.20 : 145,435.32 = 60,070.02 : x
  2. Step 2: Convert to fraction form
    105,385.20/145,435.32 = 60,070.02/x
  3. Step 3: Cross multiply
    105,385.20x = 145,435.32 × 60,070.02
  4. Step 4: Simplify right side
    105,385.20x = 8,736,302,581.11
  5. Step 5: Solve for x
    x = 8,736,302,581.11/105,385.20
  6. Step 6: Final answer
    x = 82,898.76

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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.