Home / 210,901.12-316,286.59-61,152.45

Finding the Fourth Proportional to 210,901.12, 316,286.59 and 61,152.45

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Solution

The fourth proportional to 210,901.12, 316,286.59 and 61,152.45 is: 91,709.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,901.12 : 316,286.59 = 61,152.45 : x
  2. Step 2: Convert to fraction form
    210,901.12/316,286.59 = 61,152.45/x
  3. Step 3: Cross multiply
    210,901.12x = 316,286.59 × 61,152.45
  4. Step 4: Simplify right side
    210,901.12x = 19,341,699,703.80
  5. Step 5: Solve for x
    x = 19,341,699,703.80/210,901.12
  6. Step 6: Final answer
    x = 91,709.80

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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.