Home / 124,389.70-171,685.47-79,058.86

Finding the Fourth Proportional to 124,389.70, 171,685.47 and 79,058.86

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Solution

The fourth proportional to 124,389.70, 171,685.47 and 79,058.86 is: 109,118.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,389.70 : 171,685.47 = 79,058.86 : x
  2. Step 2: Convert to fraction form
    124,389.70/171,685.47 = 79,058.86/x
  3. Step 3: Cross multiply
    124,389.70x = 171,685.47 × 79,058.86
  4. Step 4: Simplify right side
    124,389.70x = 13,573,257,536.76
  5. Step 5: Solve for x
    x = 13,573,257,536.76/124,389.70
  6. Step 6: Final answer
    x = 109,118.82

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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.