Home / 154,248.08-212,983.08-118,381.36

Finding the Fourth Proportional to 154,248.08, 212,983.08 and 118,381.36

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Solution

The fourth proportional to 154,248.08, 212,983.08 and 118,381.36 is: 163,458.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,248.08 : 212,983.08 = 118,381.36 : x
  2. Step 2: Convert to fraction form
    154,248.08/212,983.08 = 118,381.36/x
  3. Step 3: Cross multiply
    154,248.08x = 212,983.08 × 118,381.36
  4. Step 4: Simplify right side
    154,248.08x = 25,213,226,667.39
  5. Step 5: Solve for x
    x = 25,213,226,667.39/154,248.08
  6. Step 6: Final answer
    x = 163,458.93

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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.