Home / 109,779.20-151,495.44-59,478.16

Finding the Fourth Proportional to 109,779.20, 151,495.44 and 59,478.16

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Solution

The fourth proportional to 109,779.20, 151,495.44 and 59,478.16 is: 82,079.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,779.20 : 151,495.44 = 59,478.16 : x
  2. Step 2: Convert to fraction form
    109,779.20/151,495.44 = 59,478.16/x
  3. Step 3: Cross multiply
    109,779.20x = 151,495.44 × 59,478.16
  4. Step 4: Simplify right side
    109,779.20x = 9,010,670,019.59
  5. Step 5: Solve for x
    x = 9,010,670,019.59/109,779.20
  6. Step 6: Final answer
    x = 82,079.94

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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.