Home / 157,368.09-217,165.23-85,748.70

Finding the Fourth Proportional to 157,368.09, 217,165.23 and 85,748.70

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Solution

The fourth proportional to 157,368.09, 217,165.23 and 85,748.70 is: 118,331.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,368.09 : 217,165.23 = 85,748.70 : x
  2. Step 2: Convert to fraction form
    157,368.09/217,165.23 = 85,748.70/x
  3. Step 3: Cross multiply
    157,368.09x = 217,165.23 × 85,748.70
  4. Step 4: Simplify right side
    157,368.09x = 18,621,636,157.70
  5. Step 5: Solve for x
    x = 18,621,636,157.70/157,368.09
  6. Step 6: Final answer
    x = 118,331.72

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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.