Home / 130,417.96-179,977.54-76,705.24

Finding the Fourth Proportional to 130,417.96, 179,977.54 and 76,705.24

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Solution

The fourth proportional to 130,417.96, 179,977.54 and 76,705.24 is: 105,853.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,417.96 : 179,977.54 = 76,705.24 : x
  2. Step 2: Convert to fraction form
    130,417.96/179,977.54 = 76,705.24/x
  3. Step 3: Cross multiply
    130,417.96x = 179,977.54 × 76,705.24
  4. Step 4: Simplify right side
    130,417.96x = 13,805,220,400.31
  5. Step 5: Solve for x
    x = 13,805,220,400.31/130,417.96
  6. Step 6: Final answer
    x = 105,853.68

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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.