Home / 180,828.30-249,543.12-100,256.82

Finding the Fourth Proportional to 180,828.30, 249,543.12 and 100,256.82

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Solution

The fourth proportional to 180,828.30, 249,543.12 and 100,256.82 is: 138,354.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,828.30 : 249,543.12 = 100,256.82 : x
  2. Step 2: Convert to fraction form
    180,828.30/249,543.12 = 100,256.82/x
  3. Step 3: Cross multiply
    180,828.30x = 249,543.12 × 100,256.82
  4. Step 4: Simplify right side
    180,828.30x = 25,018,399,664.08
  5. Step 5: Solve for x
    x = 25,018,399,664.08/180,828.30
  6. Step 6: Final answer
    x = 138,354.45

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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.