Home / 153,162.11-211,332.67-89,487.60

Finding the Fourth Proportional to 153,162.11, 211,332.67 and 89,487.60

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Solution

The fourth proportional to 153,162.11, 211,332.67 and 89,487.60 is: 123,474.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,162.11 : 211,332.67 = 89,487.60 : x
  2. Step 2: Convert to fraction form
    153,162.11/211,332.67 = 89,487.60/x
  3. Step 3: Cross multiply
    153,162.11x = 211,332.67 × 89,487.60
  4. Step 4: Simplify right side
    153,162.11x = 18,911,653,439.89
  5. Step 5: Solve for x
    x = 18,911,653,439.89/153,162.11
  6. Step 6: Final answer
    x = 123,474.75

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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.