Home / 202,211.40-279,036.72-117,312.06

Finding the Fourth Proportional to 202,211.40, 279,036.72 and 117,312.06

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Solution

The fourth proportional to 202,211.40, 279,036.72 and 117,312.06 is: 161,881.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,211.40 : 279,036.72 = 117,312.06 : x
  2. Step 2: Convert to fraction form
    202,211.40/279,036.72 = 117,312.06/x
  3. Step 3: Cross multiply
    202,211.40x = 279,036.72 × 117,312.06
  4. Step 4: Simplify right side
    202,211.40x = 32,734,372,438.84
  5. Step 5: Solve for x
    x = 32,734,372,438.84/202,211.40
  6. Step 6: Final answer
    x = 161,881.93

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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.