Home / 153,712.16-212,202.96-109,106.72

Finding the Fourth Proportional to 153,712.16, 212,202.96 and 109,106.72

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Solution

The fourth proportional to 153,712.16, 212,202.96 and 109,106.72 is: 150,624.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,712.16 : 212,202.96 = 109,106.72 : x
  2. Step 2: Convert to fraction form
    153,712.16/212,202.96 = 109,106.72/x
  3. Step 3: Cross multiply
    153,712.16x = 212,202.96 × 109,106.72
  4. Step 4: Simplify right side
    153,712.16x = 23,152,768,939.89
  5. Step 5: Solve for x
    x = 23,152,768,939.89/153,712.16
  6. Step 6: Final answer
    x = 150,624.19

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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.