Home / 151,809.21-209,484.90-88,151.76

Finding the Fourth Proportional to 151,809.21, 209,484.90 and 88,151.76

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Solution

The fourth proportional to 151,809.21, 209,484.90 and 88,151.76 is: 121,642.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,809.21 : 209,484.90 = 88,151.76 : x
  2. Step 2: Convert to fraction form
    151,809.21/209,484.90 = 88,151.76/x
  3. Step 3: Cross multiply
    151,809.21x = 209,484.90 × 88,151.76
  4. Step 4: Simplify right side
    151,809.21x = 18,466,462,628.42
  5. Step 5: Solve for x
    x = 18,466,462,628.42/151,809.21
  6. Step 6: Final answer
    x = 121,642.57

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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.