Home / 98,030.16-147,045.24-45,432.72

Finding the Fourth Proportional to 98,030.16, 147,045.24 and 45,432.72

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Solution

The fourth proportional to 98,030.16, 147,045.24 and 45,432.72 is: 68,149.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,030.16 : 147,045.24 = 45,432.72 : x
  2. Step 2: Convert to fraction form
    98,030.16/147,045.24 = 45,432.72/x
  3. Step 3: Cross multiply
    98,030.16x = 147,045.24 × 45,432.72
  4. Step 4: Simplify right side
    98,030.16x = 6,680,665,216.25
  5. Step 5: Solve for x
    x = 6,680,665,216.25/98,030.16
  6. Step 6: Final answer
    x = 68,149.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.