Home / 180,966.36-249,710.85-100,372.98

Finding the Fourth Proportional to 180,966.36, 249,710.85 and 100,372.98

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Solution

The fourth proportional to 180,966.36, 249,710.85 and 100,372.98 is: 138,502.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,966.36 : 249,710.85 = 100,372.98 : x
  2. Step 2: Convert to fraction form
    180,966.36/249,710.85 = 100,372.98/x
  3. Step 3: Cross multiply
    180,966.36x = 249,710.85 × 100,372.98
  4. Step 4: Simplify right side
    180,966.36x = 25,064,222,152.83
  5. Step 5: Solve for x
    x = 25,064,222,152.83/180,966.36
  6. Step 6: Final answer
    x = 138,502.11

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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.