Home / 118,223.60-163,146.30-64,507.28

Finding the Fourth Proportional to 118,223.60, 163,146.30 and 64,507.28

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Solution

The fourth proportional to 118,223.60, 163,146.30 and 64,507.28 is: 89,018.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,223.60 : 163,146.30 = 64,507.28 : x
  2. Step 2: Convert to fraction form
    118,223.60/163,146.30 = 64,507.28/x
  3. Step 3: Cross multiply
    118,223.60x = 163,146.30 × 64,507.28
  4. Step 4: Simplify right side
    118,223.60x = 10,524,124,055.06
  5. Step 5: Solve for x
    x = 10,524,124,055.06/118,223.60
  6. Step 6: Final answer
    x = 89,018.81

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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.