Home / 115,124.14-158,876.81-64,140.31

Finding the Fourth Proportional to 115,124.14, 158,876.81 and 64,140.31

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Solution

The fourth proportional to 115,124.14, 158,876.81 and 64,140.31 is: 88,516.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,124.14 : 158,876.81 = 64,140.31 : x
  2. Step 2: Convert to fraction form
    115,124.14/158,876.81 = 64,140.31/x
  3. Step 3: Cross multiply
    115,124.14x = 158,876.81 × 64,140.31
  4. Step 4: Simplify right side
    115,124.14x = 10,190,407,845.21
  5. Step 5: Solve for x
    x = 10,190,407,845.21/115,124.14
  6. Step 6: Final answer
    x = 88,516.69

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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.