Home / 130,012.31-179,436.13-76,326.93

Finding the Fourth Proportional to 130,012.31, 179,436.13 and 76,326.93

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Solution

The fourth proportional to 130,012.31, 179,436.13 and 76,326.93 is: 105,342.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,012.31 : 179,436.13 = 76,326.93 : x
  2. Step 2: Convert to fraction form
    130,012.31/179,436.13 = 76,326.93/x
  3. Step 3: Cross multiply
    130,012.31x = 179,436.13 × 76,326.93
  4. Step 4: Simplify right side
    130,012.31x = 13,695,808,743.16
  5. Step 5: Solve for x
    x = 13,695,808,743.16/130,012.31
  6. Step 6: Final answer
    x = 105,342.40

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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.