Home / 147,157.13-203,083.50-86,730.32

Finding the Fourth Proportional to 147,157.13, 203,083.50 and 86,730.32

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Solution

The fourth proportional to 147,157.13, 203,083.50 and 86,730.32 is: 119,691.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,157.13 : 203,083.50 = 86,730.32 : x
  2. Step 2: Convert to fraction form
    147,157.13/203,083.50 = 86,730.32/x
  3. Step 3: Cross multiply
    147,157.13x = 203,083.50 × 86,730.32
  4. Step 4: Simplify right side
    147,157.13x = 17,613,496,941.72
  5. Step 5: Solve for x
    x = 17,613,496,941.72/147,157.13
  6. Step 6: Final answer
    x = 119,691.77

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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.