Home / 113,316.77-156,390-64,923.32

Finding the Fourth Proportional to 113,316.77, 156,390 and 64,923.32

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Solution

The fourth proportional to 113,316.77, 156,390 and 64,923.32 is: 89,601.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,316.77 : 156,390 = 64,923.32 : x
  2. Step 2: Convert to fraction form
    113,316.77/156,390 = 64,923.32/x
  3. Step 3: Cross multiply
    113,316.77x = 156,390 × 64,923.32
  4. Step 4: Simplify right side
    113,316.77x = 10,153,358,014.80
  5. Step 5: Solve for x
    x = 10,153,358,014.80/113,316.77
  6. Step 6: Final answer
    x = 89,601.55

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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.