Home / 157,001.09-216,659.47-85,379.57

Finding the Fourth Proportional to 157,001.09, 216,659.47 and 85,379.57

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Solution

The fourth proportional to 157,001.09, 216,659.47 and 85,379.57 is: 117,822.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,001.09 : 216,659.47 = 85,379.57 : x
  2. Step 2: Convert to fraction form
    157,001.09/216,659.47 = 85,379.57/x
  3. Step 3: Cross multiply
    157,001.09x = 216,659.47 × 85,379.57
  4. Step 4: Simplify right side
    157,001.09x = 18,498,292,385.03
  5. Step 5: Solve for x
    x = 18,498,292,385.03/157,001.09
  6. Step 6: Final answer
    x = 117,822.70

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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.