Home / 147,387.55-203,337.08-90,700.51

Finding the Fourth Proportional to 147,387.55, 203,337.08 and 90,700.51

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Solution

The fourth proportional to 147,387.55, 203,337.08 and 90,700.51 is: 125,131.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,387.55 : 203,337.08 = 90,700.51 : x
  2. Step 2: Convert to fraction form
    147,387.55/203,337.08 = 90,700.51/x
  3. Step 3: Cross multiply
    147,387.55x = 203,337.08 × 90,700.51
  4. Step 4: Simplify right side
    147,387.55x = 18,442,776,236.19
  5. Step 5: Solve for x
    x = 18,442,776,236.19/147,387.55
  6. Step 6: Final answer
    x = 125,131.17

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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.