Home / 99,120.08-136,786.70-53,798.46

Finding the Fourth Proportional to 99,120.08, 136,786.70 and 53,798.46

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Solution

The fourth proportional to 99,120.08, 136,786.70 and 53,798.46 is: 74,242.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,120.08 : 136,786.70 = 53,798.46 : x
  2. Step 2: Convert to fraction form
    99,120.08/136,786.70 = 53,798.46/x
  3. Step 3: Cross multiply
    99,120.08x = 136,786.70 × 53,798.46
  4. Step 4: Simplify right side
    99,120.08x = 7,358,913,808.48
  5. Step 5: Solve for x
    x = 7,358,913,808.48/99,120.08
  6. Step 6: Final answer
    x = 74,242.41

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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.