Home / 137,750.43-190,071.57-77,323.62

Finding the Fourth Proportional to 137,750.43, 190,071.57 and 77,323.62

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Solution

The fourth proportional to 137,750.43, 190,071.57 and 77,323.62 is: 106,693.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,750.43 : 190,071.57 = 77,323.62 : x
  2. Step 2: Convert to fraction form
    137,750.43/190,071.57 = 77,323.62/x
  3. Step 3: Cross multiply
    137,750.43x = 190,071.57 × 77,323.62
  4. Step 4: Simplify right side
    137,750.43x = 14,697,021,851.48
  5. Step 5: Solve for x
    x = 14,697,021,851.48/137,750.43
  6. Step 6: Final answer
    x = 106,693.11

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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.