Home / 130,036.38-179,450.40-70,420.38

Finding the Fourth Proportional to 130,036.38, 179,450.40 and 70,420.38

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Solution

The fourth proportional to 130,036.38, 179,450.40 and 70,420.38 is: 97,180.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,036.38 : 179,450.40 = 70,420.38 : x
  2. Step 2: Convert to fraction form
    130,036.38/179,450.40 = 70,420.38/x
  3. Step 3: Cross multiply
    130,036.38x = 179,450.40 × 70,420.38
  4. Step 4: Simplify right side
    130,036.38x = 12,636,965,359.15
  5. Step 5: Solve for x
    x = 12,636,965,359.15/130,036.38
  6. Step 6: Final answer
    x = 97,180.23

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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.