Home / 185,140.62-277,501.05-78,458.19

Finding the Fourth Proportional to 185,140.62, 277,501.05 and 78,458.19

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Solution

The fourth proportional to 185,140.62, 277,501.05 and 78,458.19 is: 117,598.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,140.62 : 277,501.05 = 78,458.19 : x
  2. Step 2: Convert to fraction form
    185,140.62/277,501.05 = 78,458.19/x
  3. Step 3: Cross multiply
    185,140.62x = 277,501.05 × 78,458.19
  4. Step 4: Simplify right side
    185,140.62x = 21,772,230,106.10
  5. Step 5: Solve for x
    x = 21,772,230,106.10/185,140.62
  6. Step 6: Final answer
    x = 117,598.34

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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.