Home / 147,621.40-203,647.36-87,151.53

Finding the Fourth Proportional to 147,621.40, 203,647.36 and 87,151.53

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Solution

The fourth proportional to 147,621.40, 203,647.36 and 87,151.53 is: 120,227.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,621.40 : 203,647.36 = 87,151.53 : x
  2. Step 2: Convert to fraction form
    147,621.40/203,647.36 = 87,151.53/x
  3. Step 3: Cross multiply
    147,621.40x = 203,647.36 × 87,151.53
  4. Step 4: Simplify right side
    147,621.40x = 17,748,179,004.46
  5. Step 5: Solve for x
    x = 17,748,179,004.46/147,621.40
  6. Step 6: Final answer
    x = 120,227.68

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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.