Home / 130,445.16-180,018.60-73,855.32

Finding the Fourth Proportional to 130,445.16, 180,018.60 and 73,855.32

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Solution

The fourth proportional to 130,445.16, 180,018.60 and 73,855.32 is: 101,922.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,445.16 : 180,018.60 = 73,855.32 : x
  2. Step 2: Convert to fraction form
    130,445.16/180,018.60 = 73,855.32/x
  3. Step 3: Cross multiply
    130,445.16x = 180,018.60 × 73,855.32
  4. Step 4: Simplify right side
    130,445.16x = 13,295,331,308.95
  5. Step 5: Solve for x
    x = 13,295,331,308.95/130,445.16
  6. Step 6: Final answer
    x = 101,922.76

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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.