Home / 121,519.10-181,987.05-59,116.70

Finding the Fourth Proportional to 121,519.10, 181,987.05 and 59,116.70

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Solution

The fourth proportional to 121,519.10, 181,987.05 and 59,116.70 is: 88,533.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,519.10 : 181,987.05 = 59,116.70 : x
  2. Step 2: Convert to fraction form
    121,519.10/181,987.05 = 59,116.70/x
  3. Step 3: Cross multiply
    121,519.10x = 181,987.05 × 59,116.70
  4. Step 4: Simplify right side
    121,519.10x = 10,758,473,838.74
  5. Step 5: Solve for x
    x = 10,758,473,838.74/121,519.10
  6. Step 6: Final answer
    x = 88,533.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.