Home / 175,815.02-242,468.42-138,023.66

Finding the Fourth Proportional to 175,815.02, 242,468.42 and 138,023.66

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Solution

The fourth proportional to 175,815.02, 242,468.42 and 138,023.66 is: 190,349.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,815.02 : 242,468.42 = 138,023.66 : x
  2. Step 2: Convert to fraction form
    175,815.02/242,468.42 = 138,023.66/x
  3. Step 3: Cross multiply
    175,815.02x = 242,468.42 × 138,023.66
  4. Step 4: Simplify right side
    175,815.02x = 33,466,378,762.82
  5. Step 5: Solve for x
    x = 33,466,378,762.82/175,815.02
  6. Step 6: Final answer
    x = 190,349.94

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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.