Home / 137,802.87-190,165.73-77,373.63

Finding the Fourth Proportional to 137,802.87, 190,165.73 and 77,373.63

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Solution

The fourth proportional to 137,802.87, 190,165.73 and 77,373.63 is: 106,774.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,802.87 : 190,165.73 = 77,373.63 : x
  2. Step 2: Convert to fraction form
    137,802.87/190,165.73 = 77,373.63/x
  3. Step 3: Cross multiply
    137,802.87x = 190,165.73 × 77,373.63
  4. Step 4: Simplify right side
    137,802.87x = 14,713,812,444.83
  5. Step 5: Solve for x
    x = 14,713,812,444.83/137,802.87
  6. Step 6: Final answer
    x = 106,774.35

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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.