Home / 153,160.29-211,330.18-89,485.78

Finding the Fourth Proportional to 153,160.29, 211,330.18 and 89,485.78

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Solution

The fourth proportional to 153,160.29, 211,330.18 and 89,485.78 is: 123,472.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,160.29 : 211,330.18 = 89,485.78 : x
  2. Step 2: Convert to fraction form
    153,160.29/211,330.18 = 89,485.78/x
  3. Step 3: Cross multiply
    153,160.29x = 211,330.18 × 89,485.78
  4. Step 4: Simplify right side
    153,160.29x = 18,911,045,994.84
  5. Step 5: Solve for x
    x = 18,911,045,994.84/153,160.29
  6. Step 6: Final answer
    x = 123,472.25

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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.