Home / 153,161.61-211,331.99-89,487.10

Finding the Fourth Proportional to 153,161.61, 211,331.99 and 89,487.10

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Solution

The fourth proportional to 153,161.61, 211,331.99 and 89,487.10 is: 123,474.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,161.61 : 211,331.99 = 89,487.10 : x
  2. Step 2: Convert to fraction form
    153,161.61/211,331.99 = 89,487.10/x
  3. Step 3: Cross multiply
    153,161.61x = 211,331.99 × 89,487.10
  4. Step 4: Simplify right side
    153,161.61x = 18,911,486,474.89
  5. Step 5: Solve for x
    x = 18,911,486,474.89/153,161.61
  6. Step 6: Final answer
    x = 123,474.07

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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.