Home / 142,444.20-213,666.30-72,460.20

Finding the Fourth Proportional to 142,444.20, 213,666.30 and 72,460.20

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Solution

The fourth proportional to 142,444.20, 213,666.30 and 72,460.20 is: 108,690.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,444.20 : 213,666.30 = 72,460.20 : x
  2. Step 2: Convert to fraction form
    142,444.20/213,666.30 = 72,460.20/x
  3. Step 3: Cross multiply
    142,444.20x = 213,666.30 × 72,460.20
  4. Step 4: Simplify right side
    142,444.20x = 15,482,302,831.26
  5. Step 5: Solve for x
    x = 15,482,302,831.26/142,444.20
  6. Step 6: Final answer
    x = 108,690.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.