Home / 130,210.92-179,694.45-72,848.34

Finding the Fourth Proportional to 130,210.92, 179,694.45 and 72,848.34

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Solution

The fourth proportional to 130,210.92, 179,694.45 and 72,848.34 is: 100,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,210.92 : 179,694.45 = 72,848.34 : x
  2. Step 2: Convert to fraction form
    130,210.92/179,694.45 = 72,848.34/x
  3. Step 3: Cross multiply
    130,210.92x = 179,694.45 × 72,848.34
  4. Step 4: Simplify right side
    130,210.92x = 13,090,442,389.71
  5. Step 5: Solve for x
    x = 13,090,442,389.71/130,210.92
  6. Step 6: Final answer
    x = 100,532.60

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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.