Home / 130,880.40-196,351.35-42,130.58

Finding the Fourth Proportional to 130,880.40, 196,351.35 and 42,130.58

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Solution

The fourth proportional to 130,880.40, 196,351.35 and 42,130.58 is: 63,205.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,880.40 : 196,351.35 = 42,130.58 : x
  2. Step 2: Convert to fraction form
    130,880.40/196,351.35 = 42,130.58/x
  3. Step 3: Cross multiply
    130,880.40x = 196,351.35 × 42,130.58
  4. Step 4: Simplify right side
    130,880.40x = 8,272,395,277.53
  5. Step 5: Solve for x
    x = 8,272,395,277.53/130,880.40
  6. Step 6: Final answer
    x = 63,205.76

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1.5x scale

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.