Home / 144,319.08-199,031.34-90,609.12

Finding the Fourth Proportional to 144,319.08, 199,031.34 and 90,609.12

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Solution

The fourth proportional to 144,319.08, 199,031.34 and 90,609.12 is: 124,959.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,319.08 : 199,031.34 = 90,609.12 : x
  2. Step 2: Convert to fraction form
    144,319.08/199,031.34 = 90,609.12/x
  3. Step 3: Cross multiply
    144,319.08x = 199,031.34 × 90,609.12
  4. Step 4: Simplify right side
    144,319.08x = 18,034,054,569.82
  5. Step 5: Solve for x
    x = 18,034,054,569.82/144,319.08
  6. Step 6: Final answer
    x = 124,959.60

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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.