Home / 109,177.84-150,674.28-61,428.40

Finding the Fourth Proportional to 109,177.84, 150,674.28 and 61,428.40

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Solution

The fourth proportional to 109,177.84, 150,674.28 and 61,428.40 is: 84,776.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,177.84 : 150,674.28 = 61,428.40 : x
  2. Step 2: Convert to fraction form
    109,177.84/150,674.28 = 61,428.40/x
  3. Step 3: Cross multiply
    109,177.84x = 150,674.28 × 61,428.40
  4. Step 4: Simplify right side
    109,177.84x = 9,255,679,941.55
  5. Step 5: Solve for x
    x = 9,255,679,941.55/109,177.84
  6. Step 6: Final answer
    x = 84,776.18

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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.