Home / 102,047.36-140,848.20-56,741.22

Finding the Fourth Proportional to 102,047.36, 140,848.20 and 56,741.22

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Solution

The fourth proportional to 102,047.36, 140,848.20 and 56,741.22 is: 78,315.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,047.36 : 140,848.20 = 56,741.22 : x
  2. Step 2: Convert to fraction form
    102,047.36/140,848.20 = 56,741.22/x
  3. Step 3: Cross multiply
    102,047.36x = 140,848.20 × 56,741.22
  4. Step 4: Simplify right side
    102,047.36x = 7,991,898,702.80
  5. Step 5: Solve for x
    x = 7,991,898,702.80/102,047.36
  6. Step 6: Final answer
    x = 78,315.59

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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.