Home / 130,868.32-196,333.80-42,130.12

Finding the Fourth Proportional to 130,868.32, 196,333.80 and 42,130.12

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Solution

The fourth proportional to 130,868.32, 196,333.80 and 42,130.12 is: 63,205.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,868.32 : 196,333.80 = 42,130.12 : x
  2. Step 2: Convert to fraction form
    130,868.32/196,333.80 = 42,130.12/x
  3. Step 3: Cross multiply
    130,868.32x = 196,333.80 × 42,130.12
  4. Step 4: Simplify right side
    130,868.32x = 8,271,566,554.06
  5. Step 5: Solve for x
    x = 8,271,566,554.06/130,868.32
  6. Step 6: Final answer
    x = 63,205.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.