Home / 154,168.74-212,741.10-93,731.01

Finding the Fourth Proportional to 154,168.74, 212,741.10 and 93,731.01

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Solution

The fourth proportional to 154,168.74, 212,741.10 and 93,731.01 is: 129,341.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,168.74 : 212,741.10 = 93,731.01 : x
  2. Step 2: Convert to fraction form
    154,168.74/212,741.10 = 93,731.01/x
  3. Step 3: Cross multiply
    154,168.74x = 212,741.10 × 93,731.01
  4. Step 4: Simplify right side
    154,168.74x = 19,940,438,171.51
  5. Step 5: Solve for x
    x = 19,940,438,171.51/154,168.74
  6. Step 6: Final answer
    x = 129,341.64

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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.