Home / 118,421.56-163,433.10-64,714.72

Finding the Fourth Proportional to 118,421.56, 163,433.10 and 64,714.72

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Solution

The fourth proportional to 118,421.56, 163,433.10 and 64,714.72 is: 89,312.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,421.56 : 163,433.10 = 64,714.72 : x
  2. Step 2: Convert to fraction form
    118,421.56/163,433.10 = 64,714.72/x
  3. Step 3: Cross multiply
    118,421.56x = 163,433.10 × 64,714.72
  4. Step 4: Simplify right side
    118,421.56x = 10,576,527,305.23
  5. Step 5: Solve for x
    x = 10,576,527,305.23/118,421.56
  6. Step 6: Final answer
    x = 89,312.51

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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.