Home / 108,900.18-150,281.67-61,157.70

Finding the Fourth Proportional to 108,900.18, 150,281.67 and 61,157.70

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Solution

The fourth proportional to 108,900.18, 150,281.67 and 61,157.70 is: 84,397.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,900.18 : 150,281.67 = 61,157.70 : x
  2. Step 2: Convert to fraction form
    108,900.18/150,281.67 = 61,157.70/x
  3. Step 3: Cross multiply
    108,900.18x = 150,281.67 × 61,157.70
  4. Step 4: Simplify right side
    108,900.18x = 9,190,881,289.36
  5. Step 5: Solve for x
    x = 9,190,881,289.36/108,900.18
  6. Step 6: Final answer
    x = 84,397.30

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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.