Home / 103,059.48-142,220.35-57,737.32

Finding the Fourth Proportional to 103,059.48, 142,220.35 and 57,737.32

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Solution

The fourth proportional to 103,059.48, 142,220.35 and 57,737.32 is: 79,676.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,059.48 : 142,220.35 = 57,737.32 : x
  2. Step 2: Convert to fraction form
    103,059.48/142,220.35 = 57,737.32/x
  3. Step 3: Cross multiply
    103,059.48x = 142,220.35 × 57,737.32
  4. Step 4: Simplify right side
    103,059.48x = 8,211,421,575.08
  5. Step 5: Solve for x
    x = 8,211,421,575.08/103,059.48
  6. Step 6: Final answer
    x = 79,676.53

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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.