Home / 130,417.49-179,972.71-76,705.81

Finding the Fourth Proportional to 130,417.49, 179,972.71 and 76,705.81

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Solution

The fourth proportional to 130,417.49, 179,972.71 and 76,705.81 is: 105,852.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,417.49 : 179,972.71 = 76,705.81 : x
  2. Step 2: Convert to fraction form
    130,417.49/179,972.71 = 76,705.81/x
  3. Step 3: Cross multiply
    130,417.49x = 179,972.71 × 76,705.81
  4. Step 4: Simplify right side
    130,417.49x = 13,804,951,856.75
  5. Step 5: Solve for x
    x = 13,804,951,856.75/130,417.49
  6. Step 6: Final answer
    x = 105,852.00

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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.