Home / 188,678.16-282,886.02-70,317.72

Finding the Fourth Proportional to 188,678.16, 282,886.02 and 70,317.72

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Solution

The fourth proportional to 188,678.16, 282,886.02 and 70,317.72 is: 105,427.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,678.16 : 282,886.02 = 70,317.72 : x
  2. Step 2: Convert to fraction form
    188,678.16/282,886.02 = 70,317.72/x
  3. Step 3: Cross multiply
    188,678.16x = 282,886.02 × 70,317.72
  4. Step 4: Simplify right side
    188,678.16x = 19,891,899,946.27
  5. Step 5: Solve for x
    x = 19,891,899,946.27/188,678.16
  6. Step 6: Final answer
    x = 105,427.68

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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.