Home / 84,103.50-126,155.28-34,210.74

Finding the Fourth Proportional to 84,103.50, 126,155.28 and 34,210.74

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Solution

The fourth proportional to 84,103.50, 126,155.28 and 34,210.74 is: 51,316.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,103.50 : 126,155.28 = 34,210.74 : x
  2. Step 2: Convert to fraction form
    84,103.50/126,155.28 = 34,210.74/x
  3. Step 3: Cross multiply
    84,103.50x = 126,155.28 × 34,210.74
  4. Step 4: Simplify right side
    84,103.50x = 4,315,865,483.71
  5. Step 5: Solve for x
    x = 4,315,865,483.71/84,103.50
  6. Step 6: Final answer
    x = 51,316.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.