Home / 102,124.88-153,206.76-31,985.36

Finding the Fourth Proportional to 102,124.88, 153,206.76 and 31,985.36

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Solution

The fourth proportional to 102,124.88, 153,206.76 and 31,985.36 is: 47,984.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,124.88 : 153,206.76 = 31,985.36 : x
  2. Step 2: Convert to fraction form
    102,124.88/153,206.76 = 31,985.36/x
  3. Step 3: Cross multiply
    102,124.88x = 153,206.76 × 31,985.36
  4. Step 4: Simplify right side
    102,124.88x = 4,900,373,373.03
  5. Step 5: Solve for x
    x = 4,900,373,373.03/102,124.88
  6. Step 6: Final answer
    x = 47,984.13

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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.