Home / 99,160.40-136,841.81-53,838.68

Finding the Fourth Proportional to 99,160.40, 136,841.81 and 53,838.68

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Solution

The fourth proportional to 99,160.40, 136,841.81 and 53,838.68 is: 74,297.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,160.40 : 136,841.81 = 53,838.68 : x
  2. Step 2: Convert to fraction form
    99,160.40/136,841.81 = 53,838.68/x
  3. Step 3: Cross multiply
    99,160.40x = 136,841.81 × 53,838.68
  4. Step 4: Simplify right side
    99,160.40x = 7,367,381,465.81
  5. Step 5: Solve for x
    x = 7,367,381,465.81/99,160.40
  6. Step 6: Final answer
    x = 74,297.62

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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.