Home / 130,573.42-179,017.79-128,211.46

Finding the Fourth Proportional to 130,573.42, 179,017.79 and 128,211.46

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Solution

The fourth proportional to 130,573.42, 179,017.79 and 128,211.46 is: 175,779.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,573.42 : 179,017.79 = 128,211.46 : x
  2. Step 2: Convert to fraction form
    130,573.42/179,017.79 = 128,211.46/x
  3. Step 3: Cross multiply
    130,573.42x = 179,017.79 × 128,211.46
  4. Step 4: Simplify right side
    130,573.42x = 22,952,132,221.87
  5. Step 5: Solve for x
    x = 22,952,132,221.87/130,573.42
  6. Step 6: Final answer
    x = 175,779.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.