Home / 102,058.35-153,113.40-72,131.47

Finding the Fourth Proportional to 102,058.35, 153,113.40 and 72,131.47

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Solution

The fourth proportional to 102,058.35, 153,113.40 and 72,131.47 is: 108,215.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,058.35 : 153,113.40 = 72,131.47 : x
  2. Step 2: Convert to fraction form
    102,058.35/153,113.40 = 72,131.47/x
  3. Step 3: Cross multiply
    102,058.35x = 153,113.40 × 72,131.47
  4. Step 4: Simplify right side
    102,058.35x = 11,044,294,618.70
  5. Step 5: Solve for x
    x = 11,044,294,618.70/102,058.35
  6. Step 6: Final answer
    x = 108,215.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.