Home / 153,125.28-211,294.08-89,416.80

Finding the Fourth Proportional to 153,125.28, 211,294.08 and 89,416.80

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Solution

The fourth proportional to 153,125.28, 211,294.08 and 89,416.80 is: 123,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,125.28 : 211,294.08 = 89,416.80 : x
  2. Step 2: Convert to fraction form
    153,125.28/211,294.08 = 89,416.80/x
  3. Step 3: Cross multiply
    153,125.28x = 211,294.08 × 89,416.80
  4. Step 4: Simplify right side
    153,125.28x = 18,893,240,492.54
  5. Step 5: Solve for x
    x = 18,893,240,492.54/153,125.28
  6. Step 6: Final answer
    x = 123,384.20

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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.