Home / 137,769.60-190,041.84-86,762.28

Finding the Fourth Proportional to 137,769.60, 190,041.84 and 86,762.28

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Solution

The fourth proportional to 137,769.60, 190,041.84 and 86,762.28 is: 119,681.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,769.60 : 190,041.84 = 86,762.28 : x
  2. Step 2: Convert to fraction form
    137,769.60/190,041.84 = 86,762.28/x
  3. Step 3: Cross multiply
    137,769.60x = 190,041.84 × 86,762.28
  4. Step 4: Simplify right side
    137,769.60x = 16,488,463,333.80
  5. Step 5: Solve for x
    x = 16,488,463,333.80/137,769.60
  6. Step 6: Final answer
    x = 119,681.43

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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.