Home / 151,637.02-209,191.42-87,937.90

Finding the Fourth Proportional to 151,637.02, 209,191.42 and 87,937.90

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Solution

The fourth proportional to 151,637.02, 209,191.42 and 87,937.90 is: 121,315.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,637.02 : 209,191.42 = 87,937.90 : x
  2. Step 2: Convert to fraction form
    151,637.02/209,191.42 = 87,937.90/x
  3. Step 3: Cross multiply
    151,637.02x = 209,191.42 × 87,937.90
  4. Step 4: Simplify right side
    151,637.02x = 18,395,854,172.82
  5. Step 5: Solve for x
    x = 18,395,854,172.82/151,637.02
  6. Step 6: Final answer
    x = 121,315.06

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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.