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Finding the Fourth Proportional to 101,630.52, 140,239.44 and 56,307.42

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Solution

The fourth proportional to 101,630.52, 140,239.44 and 56,307.42 is: 77,698.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,630.52 : 140,239.44 = 56,307.42 : x
  2. Step 2: Convert to fraction form
    101,630.52/140,239.44 = 56,307.42/x
  3. Step 3: Cross multiply
    101,630.52x = 140,239.44 × 56,307.42
  4. Step 4: Simplify right side
    101,630.52x = 7,896,521,048.64
  5. Step 5: Solve for x
    x = 7,896,521,048.64/101,630.52
  6. Step 6: Final answer
    x = 77,698.32

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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.