Home / 130,045.12-179,462.88-70,429.12

Finding the Fourth Proportional to 130,045.12, 179,462.88 and 70,429.12

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Solution

The fourth proportional to 130,045.12, 179,462.88 and 70,429.12 is: 97,192.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,045.12 : 179,462.88 = 70,429.12 : x
  2. Step 2: Convert to fraction form
    130,045.12/179,462.88 = 70,429.12/x
  3. Step 3: Cross multiply
    130,045.12x = 179,462.88 × 70,429.12
  4. Step 4: Simplify right side
    130,045.12x = 12,639,412,711.07
  5. Step 5: Solve for x
    x = 12,639,412,711.07/130,045.12
  6. Step 6: Final answer
    x = 97,192.52

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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.