Home / 210,581.69-290,602.76-115,088.36

Finding the Fourth Proportional to 210,581.69, 290,602.76 and 115,088.36

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Solution

The fourth proportional to 210,581.69, 290,602.76 and 115,088.36 is: 158,821.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,581.69 : 290,602.76 = 115,088.36 : x
  2. Step 2: Convert to fraction form
    210,581.69/290,602.76 = 115,088.36/x
  3. Step 3: Cross multiply
    210,581.69x = 290,602.76 × 115,088.36
  4. Step 4: Simplify right side
    210,581.69x = 33,444,995,059.87
  5. Step 5: Solve for x
    x = 33,444,995,059.87/210,581.69
  6. Step 6: Final answer
    x = 158,821.95

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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.