Home / 103,615.40-154,666.63-88,918.76

Finding the Fourth Proportional to 103,615.40, 154,666.63 and 88,918.76

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Solution

The fourth proportional to 103,615.40, 154,666.63 and 88,918.76 is: 132,728.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,615.40 : 154,666.63 = 88,918.76 : x
  2. Step 2: Convert to fraction form
    103,615.40/154,666.63 = 88,918.76/x
  3. Step 3: Cross multiply
    103,615.40x = 154,666.63 × 88,918.76
  4. Step 4: Simplify right side
    103,615.40x = 13,752,764,952.98
  5. Step 5: Solve for x
    x = 13,752,764,952.98/103,615.40
  6. Step 6: Final answer
    x = 132,728.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.