Home / 126,437.74-174,477.09-72,723.66

Finding the Fourth Proportional to 126,437.74, 174,477.09 and 72,723.66

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Solution

The fourth proportional to 126,437.74, 174,477.09 and 72,723.66 is: 100,354.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,437.74 : 174,477.09 = 72,723.66 : x
  2. Step 2: Convert to fraction form
    126,437.74/174,477.09 = 72,723.66/x
  3. Step 3: Cross multiply
    126,437.74x = 174,477.09 × 72,723.66
  4. Step 4: Simplify right side
    126,437.74x = 12,688,612,643.52
  5. Step 5: Solve for x
    x = 12,688,612,643.52/126,437.74
  6. Step 6: Final answer
    x = 100,354.63

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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.