Home / 98,605.20-147,907.80-58,688.40

Finding the Fourth Proportional to 98,605.20, 147,907.80 and 58,688.40

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Solution

The fourth proportional to 98,605.20, 147,907.80 and 58,688.40 is: 88,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,605.20 : 147,907.80 = 58,688.40 : x
  2. Step 2: Convert to fraction form
    98,605.20/147,907.80 = 58,688.40/x
  3. Step 3: Cross multiply
    98,605.20x = 147,907.80 × 58,688.40
  4. Step 4: Simplify right side
    98,605.20x = 8,680,472,129.52
  5. Step 5: Solve for x
    x = 8,680,472,129.52/98,605.20
  6. Step 6: Final answer
    x = 88,032.60

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1.5x scale

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.