Home / 142,730.64-196,857.40-97,445.12

Finding the Fourth Proportional to 142,730.64, 196,857.40 and 97,445.12

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Solution

The fourth proportional to 142,730.64, 196,857.40 and 97,445.12 is: 134,398.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,730.64 : 196,857.40 = 97,445.12 : x
  2. Step 2: Convert to fraction form
    142,730.64/196,857.40 = 97,445.12/x
  3. Step 3: Cross multiply
    142,730.64x = 196,857.40 × 97,445.12
  4. Step 4: Simplify right side
    142,730.64x = 19,182,792,965.89
  5. Step 5: Solve for x
    x = 19,182,792,965.89/142,730.64
  6. Step 6: Final answer
    x = 134,398.56

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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.