Home / 99,117.78-136,782.67-53,795.76

Finding the Fourth Proportional to 99,117.78, 136,782.67 and 53,795.76

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Solution

The fourth proportional to 99,117.78, 136,782.67 and 53,795.76 is: 74,238.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,117.78 : 136,782.67 = 53,795.76 : x
  2. Step 2: Convert to fraction form
    99,117.78/136,782.67 = 53,795.76/x
  3. Step 3: Cross multiply
    99,117.78x = 136,782.67 × 53,795.76
  4. Step 4: Simplify right side
    99,117.78x = 7,358,327,687.48
  5. Step 5: Solve for x
    x = 7,358,327,687.48/99,117.78
  6. Step 6: Final answer
    x = 74,238.22

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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.