Home / 145,031.76-200,042.16-140,154.72

Finding the Fourth Proportional to 145,031.76, 200,042.16 and 140,154.72

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Solution

The fourth proportional to 145,031.76, 200,042.16 and 140,154.72 is: 193,315.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,031.76 : 200,042.16 = 140,154.72 : x
  2. Step 2: Convert to fraction form
    145,031.76/200,042.16 = 140,154.72/x
  3. Step 3: Cross multiply
    145,031.76x = 200,042.16 × 140,154.72
  4. Step 4: Simplify right side
    145,031.76x = 28,036,852,923.00
  5. Step 5: Solve for x
    x = 28,036,852,923.00/145,031.76
  6. Step 6: Final answer
    x = 193,315.26

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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.