Home / 153,172.61-211,346.95-89,498.09

Finding the Fourth Proportional to 153,172.61, 211,346.95 and 89,498.09

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Solution

The fourth proportional to 153,172.61, 211,346.95 and 89,498.09 is: 123,489.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,172.61 : 211,346.95 = 89,498.09 : x
  2. Step 2: Convert to fraction form
    153,172.61/211,346.95 = 89,498.09/x
  3. Step 3: Cross multiply
    153,172.61x = 211,346.95 × 89,498.09
  4. Step 4: Simplify right side
    153,172.61x = 18,915,148,352.33
  5. Step 5: Solve for x
    x = 18,915,148,352.33/153,172.61
  6. Step 6: Final answer
    x = 123,489.10

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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.