Home / 155,427.75-214,498.17-91,764.18

Finding the Fourth Proportional to 155,427.75, 214,498.17 and 91,764.18

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Solution

The fourth proportional to 155,427.75, 214,498.17 and 91,764.18 is: 126,639.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,427.75 : 214,498.17 = 91,764.18 : x
  2. Step 2: Convert to fraction form
    155,427.75/214,498.17 = 91,764.18/x
  3. Step 3: Cross multiply
    155,427.75x = 214,498.17 × 91,764.18
  4. Step 4: Simplify right side
    155,427.75x = 19,683,248,681.55
  5. Step 5: Solve for x
    x = 19,683,248,681.55/155,427.75
  6. Step 6: Final answer
    x = 126,639.22

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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.