Home / 102,053.53-153,102.12-42,858.73

Finding the Fourth Proportional to 102,053.53, 153,102.12 and 42,858.73

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Solution

The fourth proportional to 102,053.53, 153,102.12 and 42,858.73 is: 64,297.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,053.53 : 153,102.12 = 42,858.73 : x
  2. Step 2: Convert to fraction form
    102,053.53/153,102.12 = 42,858.73/x
  3. Step 3: Cross multiply
    102,053.53x = 153,102.12 × 42,858.73
  4. Step 4: Simplify right side
    102,053.53x = 6,561,762,423.51
  5. Step 5: Solve for x
    x = 6,561,762,423.51/102,053.53
  6. Step 6: Final answer
    x = 64,297.26

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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.