Home / 128,252.04-176,987.43-71,663.46

Finding the Fourth Proportional to 128,252.04, 176,987.43 and 71,663.46

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Solution

The fourth proportional to 128,252.04, 176,987.43 and 71,663.46 is: 98,895.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,252.04 : 176,987.43 = 71,663.46 : x
  2. Step 2: Convert to fraction form
    128,252.04/176,987.43 = 71,663.46/x
  3. Step 3: Cross multiply
    128,252.04x = 176,987.43 × 71,663.46
  4. Step 4: Simplify right side
    128,252.04x = 12,683,531,610.31
  5. Step 5: Solve for x
    x = 12,683,531,610.31/128,252.04
  6. Step 6: Final answer
    x = 98,895.36

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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.