Home / 153,587.86-211,925.55-85,589.92

Finding the Fourth Proportional to 153,587.86, 211,925.55 and 85,589.92

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Solution

The fourth proportional to 153,587.86, 211,925.55 and 85,589.92 is: 118,099.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,587.86 : 211,925.55 = 85,589.92 : x
  2. Step 2: Convert to fraction form
    153,587.86/211,925.55 = 85,589.92/x
  3. Step 3: Cross multiply
    153,587.86x = 211,925.55 × 85,589.92
  4. Step 4: Simplify right side
    153,587.86x = 18,138,690,870.46
  5. Step 5: Solve for x
    x = 18,138,690,870.46/153,587.86
  6. Step 6: Final answer
    x = 118,099.77

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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.