Home / 124,261.29-171,457.02-78,946.65

Finding the Fourth Proportional to 124,261.29, 171,457.02 and 78,946.65

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Solution

The fourth proportional to 124,261.29, 171,457.02 and 78,946.65 is: 108,931.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,261.29 : 171,457.02 = 78,946.65 : x
  2. Step 2: Convert to fraction form
    124,261.29/171,457.02 = 78,946.65/x
  3. Step 3: Cross multiply
    124,261.29x = 171,457.02 × 78,946.65
  4. Step 4: Simplify right side
    124,261.29x = 13,535,957,347.98
  5. Step 5: Solve for x
    x = 13,535,957,347.98/124,261.29
  6. Step 6: Final answer
    x = 108,931.41

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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.