Home / 157,904.61-217,899.23-86,285.22

Finding the Fourth Proportional to 157,904.61, 217,899.23 and 86,285.22

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Solution

The fourth proportional to 157,904.61, 217,899.23 and 86,285.22 is: 119,068.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,904.61 : 217,899.23 = 86,285.22 : x
  2. Step 2: Convert to fraction form
    157,904.61/217,899.23 = 86,285.22/x
  3. Step 3: Cross multiply
    157,904.61x = 217,899.23 × 86,285.22
  4. Step 4: Simplify right side
    157,904.61x = 18,801,482,566.95
  5. Step 5: Solve for x
    x = 18,801,482,566.95/157,904.61
  6. Step 6: Final answer
    x = 119,068.61

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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.