Home / 139,882.08-209,852.96-45,117.59

Finding the Fourth Proportional to 139,882.08, 209,852.96 and 45,117.59

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Solution

The fourth proportional to 139,882.08, 209,852.96 and 45,117.59 is: 67,686.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,882.08 : 209,852.96 = 45,117.59 : x
  2. Step 2: Convert to fraction form
    139,882.08/209,852.96 = 45,117.59/x
  3. Step 3: Cross multiply
    139,882.08x = 209,852.96 × 45,117.59
  4. Step 4: Simplify right side
    139,882.08x = 9,468,058,534.71
  5. Step 5: Solve for x
    x = 9,468,058,534.71/139,882.08
  6. Step 6: Final answer
    x = 67,686.00

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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.