Home / 191,552.40-287,458.20-86,317.20

Finding the Fourth Proportional to 191,552.40, 287,458.20 and 86,317.20

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Solution

The fourth proportional to 191,552.40, 287,458.20 and 86,317.20 is: 129,534.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,552.40 : 287,458.20 = 86,317.20 : x
  2. Step 2: Convert to fraction form
    191,552.40/287,458.20 = 86,317.20/x
  3. Step 3: Cross multiply
    191,552.40x = 287,458.20 × 86,317.20
  4. Step 4: Simplify right side
    191,552.40x = 24,812,586,941.04
  5. Step 5: Solve for x
    x = 24,812,586,941.04/191,552.40
  6. Step 6: Final answer
    x = 129,534.20

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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.