Home / 137,948.29-190,374.27-77,518.74

Finding the Fourth Proportional to 137,948.29, 190,374.27 and 77,518.74

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Solution

The fourth proportional to 137,948.29, 190,374.27 and 77,518.74 is: 106,979.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,948.29 : 190,374.27 = 77,518.74 : x
  2. Step 2: Convert to fraction form
    137,948.29/190,374.27 = 77,518.74/x
  3. Step 3: Cross multiply
    137,948.29x = 190,374.27 × 77,518.74
  4. Step 4: Simplify right side
    137,948.29x = 14,757,573,962.03
  5. Step 5: Solve for x
    x = 14,757,573,962.03/137,948.29
  6. Step 6: Final answer
    x = 106,979.03

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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.