Home / 137,979.04-190,405.68-77,552.32

Finding the Fourth Proportional to 137,979.04, 190,405.68 and 77,552.32

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Solution

The fourth proportional to 137,979.04, 190,405.68 and 77,552.32 is: 107,019.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,979.04 : 190,405.68 = 77,552.32 : x
  2. Step 2: Convert to fraction form
    137,979.04/190,405.68 = 77,552.32/x
  3. Step 3: Cross multiply
    137,979.04x = 190,405.68 × 77,552.32
  4. Step 4: Simplify right side
    137,979.04x = 14,766,402,225.18
  5. Step 5: Solve for x
    x = 14,766,402,225.18/137,979.04
  6. Step 6: Final answer
    x = 107,019.17

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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.