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Finding the Fourth Proportional to 153,672.72, 212,082.36 and 93,258.72

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Solution

The fourth proportional to 153,672.72, 212,082.36 and 93,258.72 is: 128,705.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,672.72 : 212,082.36 = 93,258.72 : x
  2. Step 2: Convert to fraction form
    153,672.72/212,082.36 = 93,258.72/x
  3. Step 3: Cross multiply
    153,672.72x = 212,082.36 × 93,258.72
  4. Step 4: Simplify right side
    153,672.72x = 19,778,529,428.18
  5. Step 5: Solve for x
    x = 19,778,529,428.18/153,672.72
  6. Step 6: Final answer
    x = 128,705.53

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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.