Home / 155,711.29-214,881.55-84,091.30

Finding the Fourth Proportional to 155,711.29, 214,881.55 and 84,091.30

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Solution

The fourth proportional to 155,711.29, 214,881.55 and 84,091.30 is: 116,045.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,711.29 : 214,881.55 = 84,091.30 : x
  2. Step 2: Convert to fraction form
    155,711.29/214,881.55 = 84,091.30/x
  3. Step 3: Cross multiply
    155,711.29x = 214,881.55 × 84,091.30
  4. Step 4: Simplify right side
    155,711.29x = 18,069,668,885.52
  5. Step 5: Solve for x
    x = 18,069,668,885.52/155,711.29
  6. Step 6: Final answer
    x = 116,045.98

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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.