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Finding the Fourth Proportional to 158,900.84, 238,347.60 and 79,993.88

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Solution

The fourth proportional to 158,900.84, 238,347.60 and 79,993.88 is: 119,988.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,900.84 : 238,347.60 = 79,993.88 : x
  2. Step 2: Convert to fraction form
    158,900.84/238,347.60 = 79,993.88/x
  3. Step 3: Cross multiply
    158,900.84x = 238,347.60 × 79,993.88
  4. Step 4: Simplify right side
    158,900.84x = 19,066,349,312.69
  5. Step 5: Solve for x
    x = 19,066,349,312.69/158,900.84
  6. Step 6: Final answer
    x = 119,988.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.