Home / 158,697.02-219,001.89-90,715.47

Finding the Fourth Proportional to 158,697.02, 219,001.89 and 90,715.47

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Solution

The fourth proportional to 158,697.02, 219,001.89 and 90,715.47 is: 125,187.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,697.02 : 219,001.89 = 90,715.47 : x
  2. Step 2: Convert to fraction form
    158,697.02/219,001.89 = 90,715.47/x
  3. Step 3: Cross multiply
    158,697.02x = 219,001.89 × 90,715.47
  4. Step 4: Simplify right side
    158,697.02x = 19,866,859,382.24
  5. Step 5: Solve for x
    x = 19,866,859,382.24/158,697.02
  6. Step 6: Final answer
    x = 125,187.35

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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.