Home / 103,062.90-154,594.35-31,985.40

Finding the Fourth Proportional to 103,062.90, 154,594.35 and 31,985.40

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Solution

The fourth proportional to 103,062.90, 154,594.35 and 31,985.40 is: 47,978.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,062.90 : 154,594.35 = 31,985.40 : x
  2. Step 2: Convert to fraction form
    103,062.90/154,594.35 = 31,985.40/x
  3. Step 3: Cross multiply
    103,062.90x = 154,594.35 × 31,985.40
  4. Step 4: Simplify right side
    103,062.90x = 4,944,762,122.49
  5. Step 5: Solve for x
    x = 4,944,762,122.49/103,062.90
  6. Step 6: Final answer
    x = 47,978.10

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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.