Home / 155,363.13-214,368.93-90,819.83

Finding the Fourth Proportional to 155,363.13, 214,368.93 and 90,819.83

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Solution

The fourth proportional to 155,363.13, 214,368.93 and 90,819.83 is: 125,312.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,363.13 : 214,368.93 = 90,819.83 : x
  2. Step 2: Convert to fraction form
    155,363.13/214,368.93 = 90,819.83/x
  3. Step 3: Cross multiply
    155,363.13x = 214,368.93 × 90,819.83
  4. Step 4: Simplify right side
    155,363.13x = 19,468,950,315.80
  5. Step 5: Solve for x
    x = 19,468,950,315.80/155,363.13
  6. Step 6: Final answer
    x = 125,312.55

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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.