Home / 142,777.28-197,055.84-136,477.76

Finding the Fourth Proportional to 142,777.28, 197,055.84 and 136,477.76

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Solution

The fourth proportional to 142,777.28, 197,055.84 and 136,477.76 is: 188,361.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,777.28 : 197,055.84 = 136,477.76 : x
  2. Step 2: Convert to fraction form
    142,777.28/197,055.84 = 136,477.76/x
  3. Step 3: Cross multiply
    142,777.28x = 197,055.84 × 136,477.76
  4. Step 4: Simplify right side
    142,777.28x = 26,893,739,638.12
  5. Step 5: Solve for x
    x = 26,893,739,638.12/142,777.28
  6. Step 6: Final answer
    x = 188,361.48

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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.