Home / 210,318.16-290,239.72-134,866.96

Finding the Fourth Proportional to 210,318.16, 290,239.72 and 134,866.96

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Solution

The fourth proportional to 210,318.16, 290,239.72 and 134,866.96 is: 186,116.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,318.16 : 290,239.72 = 134,866.96 : x
  2. Step 2: Convert to fraction form
    210,318.16/290,239.72 = 134,866.96/x
  3. Step 3: Cross multiply
    210,318.16x = 290,239.72 × 134,866.96
  4. Step 4: Simplify right side
    210,318.16x = 39,143,748,707.65
  5. Step 5: Solve for x
    x = 39,143,748,707.65/210,318.16
  6. Step 6: Final answer
    x = 186,116.83

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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.