Home / 109,538.93-151,162.57-61,807.81

Finding the Fourth Proportional to 109,538.93, 151,162.57 and 61,807.81

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Solution

The fourth proportional to 109,538.93, 151,162.57 and 61,807.81 is: 85,294.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,538.93 : 151,162.57 = 61,807.81 : x
  2. Step 2: Convert to fraction form
    109,538.93/151,162.57 = 61,807.81/x
  3. Step 3: Cross multiply
    109,538.93x = 151,162.57 × 61,807.81
  4. Step 4: Simplify right side
    109,538.93x = 9,343,027,096.63
  5. Step 5: Solve for x
    x = 9,343,027,096.63/109,538.93
  6. Step 6: Final answer
    x = 85,294.12

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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.