Home / 113,715.32-170,434.61-80,444.98

Finding the Fourth Proportional to 113,715.32, 170,434.61 and 80,444.98

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Solution

The fourth proportional to 113,715.32, 170,434.61 and 80,444.98 is: 120,569.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,715.32 : 170,434.61 = 80,444.98 : x
  2. Step 2: Convert to fraction form
    113,715.32/170,434.61 = 80,444.98/x
  3. Step 3: Cross multiply
    113,715.32x = 170,434.61 × 80,444.98
  4. Step 4: Simplify right side
    113,715.32x = 13,710,607,538.36
  5. Step 5: Solve for x
    x = 13,710,607,538.36/113,715.32
  6. Step 6: Final answer
    x = 120,569.57

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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.