Home / 139,427.62-209,110.02-39,585.76

Finding the Fourth Proportional to 139,427.62, 209,110.02 and 39,585.76

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Solution

The fourth proportional to 139,427.62, 209,110.02 and 39,585.76 is: 59,369.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,427.62 : 209,110.02 = 39,585.76 : x
  2. Step 2: Convert to fraction form
    139,427.62/209,110.02 = 39,585.76/x
  3. Step 3: Cross multiply
    139,427.62x = 209,110.02 × 39,585.76
  4. Step 4: Simplify right side
    139,427.62x = 8,277,779,065.32
  5. Step 5: Solve for x
    x = 8,277,779,065.32/139,427.62
  6. Step 6: Final answer
    x = 59,369.72

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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.