Home / 155,214.35-214,158.43-90,646.95

Finding the Fourth Proportional to 155,214.35, 214,158.43 and 90,646.95

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Solution

The fourth proportional to 155,214.35, 214,158.43 and 90,646.95 is: 125,070.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,214.35 : 214,158.43 = 90,646.95 : x
  2. Step 2: Convert to fraction form
    155,214.35/214,158.43 = 90,646.95/x
  3. Step 3: Cross multiply
    155,214.35x = 214,158.43 × 90,646.95
  4. Step 4: Simplify right side
    155,214.35x = 19,412,808,496.29
  5. Step 5: Solve for x
    x = 19,412,808,496.29/155,214.35
  6. Step 6: Final answer
    x = 125,070.96

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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.