Home / 130,355.13-179,890.08-70,739.13

Finding the Fourth Proportional to 130,355.13, 179,890.08 and 70,739.13

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Solution

The fourth proportional to 130,355.13, 179,890.08 and 70,739.13 is: 97,620.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,355.13 : 179,890.08 = 70,739.13 : x
  2. Step 2: Convert to fraction form
    130,355.13/179,890.08 = 70,739.13/x
  3. Step 3: Cross multiply
    130,355.13x = 179,890.08 × 70,739.13
  4. Step 4: Simplify right side
    130,355.13x = 12,725,267,754.83
  5. Step 5: Solve for x
    x = 12,725,267,754.83/130,355.13
  6. Step 6: Final answer
    x = 97,620.00

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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.