Home / 130,386.15-179,937.18-76,676.13

Finding the Fourth Proportional to 130,386.15, 179,937.18 and 76,676.13

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Solution

The fourth proportional to 130,386.15, 179,937.18 and 76,676.13 is: 105,815.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,386.15 : 179,937.18 = 76,676.13 : x
  2. Step 2: Convert to fraction form
    130,386.15/179,937.18 = 76,676.13/x
  3. Step 3: Cross multiply
    130,386.15x = 179,937.18 × 76,676.13
  4. Step 4: Simplify right side
    130,386.15x = 13,796,886,605.51
  5. Step 5: Solve for x
    x = 13,796,886,605.51/130,386.15
  6. Step 6: Final answer
    x = 105,815.58

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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.