Home / 109,179.84-150,677.04-61,430.40

Finding the Fourth Proportional to 109,179.84, 150,677.04 and 61,430.40

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Solution

The fourth proportional to 109,179.84, 150,677.04 and 61,430.40 is: 84,778.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,179.84 : 150,677.04 = 61,430.40 : x
  2. Step 2: Convert to fraction form
    109,179.84/150,677.04 = 61,430.40/x
  3. Step 3: Cross multiply
    109,179.84x = 150,677.04 × 61,430.40
  4. Step 4: Simplify right side
    109,179.84x = 9,256,150,838.02
  5. Step 5: Solve for x
    x = 9,256,150,838.02/109,179.84
  6. Step 6: Final answer
    x = 84,778.94

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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.