Home / 124,278.30-170,308.98-112,320.54

Finding the Fourth Proportional to 124,278.30, 170,308.98 and 112,320.54

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Solution

The fourth proportional to 124,278.30, 170,308.98 and 112,320.54 is: 153,922.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,278.30 : 170,308.98 = 112,320.54 : x
  2. Step 2: Convert to fraction form
    124,278.30/170,308.98 = 112,320.54/x
  3. Step 3: Cross multiply
    124,278.30x = 170,308.98 × 112,320.54
  4. Step 4: Simplify right side
    124,278.30x = 19,129,196,600.45
  5. Step 5: Solve for x
    x = 19,129,196,600.45/124,278.30
  6. Step 6: Final answer
    x = 153,922.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.