Home / 136,424.70-204,637.05-42,930.45

Finding the Fourth Proportional to 136,424.70, 204,637.05 and 42,930.45

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Solution

The fourth proportional to 136,424.70, 204,637.05 and 42,930.45 is: 64,395.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,424.70 : 204,637.05 = 42,930.45 : x
  2. Step 2: Convert to fraction form
    136,424.70/204,637.05 = 42,930.45/x
  3. Step 3: Cross multiply
    136,424.70x = 204,637.05 × 42,930.45
  4. Step 4: Simplify right side
    136,424.70x = 8,785,160,643.17
  5. Step 5: Solve for x
    x = 8,785,160,643.17/136,424.70
  6. Step 6: Final answer
    x = 64,395.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.