Home / 218,622.12-301,699.53-123,130.41

Finding the Fourth Proportional to 218,622.12, 301,699.53 and 123,130.41

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Solution

The fourth proportional to 218,622.12, 301,699.53 and 123,130.41 is: 169,920.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,622.12 : 301,699.53 = 123,130.41 : x
  2. Step 2: Convert to fraction form
    218,622.12/301,699.53 = 123,130.41/x
  3. Step 3: Cross multiply
    218,622.12x = 301,699.53 × 123,130.41
  4. Step 4: Simplify right side
    218,622.12x = 37,148,386,825.71
  5. Step 5: Solve for x
    x = 37,148,386,825.71/218,622.12
  6. Step 6: Final answer
    x = 169,920.53

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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.