Home / 151,080.53-208,508.85-86,570.65

Finding the Fourth Proportional to 151,080.53, 208,508.85 and 86,570.65

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Solution

The fourth proportional to 151,080.53, 208,508.85 and 86,570.65 is: 119,477.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,080.53 : 208,508.85 = 86,570.65 : x
  2. Step 2: Convert to fraction form
    151,080.53/208,508.85 = 86,570.65/x
  3. Step 3: Cross multiply
    151,080.53x = 208,508.85 × 86,570.65
  4. Step 4: Simplify right side
    151,080.53x = 18,050,746,672.89
  5. Step 5: Solve for x
    x = 18,050,746,672.89/151,080.53
  6. Step 6: Final answer
    x = 119,477.65

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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.