Home / 180,959.06-249,686.45-100,369.33

Finding the Fourth Proportional to 180,959.06, 249,686.45 and 100,369.33

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Solution

The fourth proportional to 180,959.06, 249,686.45 and 100,369.33 is: 138,489.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,959.06 : 249,686.45 = 100,369.33 : x
  2. Step 2: Convert to fraction form
    180,959.06/249,686.45 = 100,369.33/x
  3. Step 3: Cross multiply
    180,959.06x = 249,686.45 × 100,369.33
  4. Step 4: Simplify right side
    180,959.06x = 25,060,860,946.90
  5. Step 5: Solve for x
    x = 25,060,860,946.90/180,959.06
  6. Step 6: Final answer
    x = 138,489.12

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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.