Home / 103,563.19-142,828.68-71,349.22

Finding the Fourth Proportional to 103,563.19, 142,828.68 and 71,349.22

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Solution

The fourth proportional to 103,563.19, 142,828.68 and 71,349.22 is: 98,400.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,563.19 : 142,828.68 = 71,349.22 : x
  2. Step 2: Convert to fraction form
    103,563.19/142,828.68 = 71,349.22/x
  3. Step 3: Cross multiply
    103,563.19x = 142,828.68 × 71,349.22
  4. Step 4: Simplify right side
    103,563.19x = 10,190,714,911.63
  5. Step 5: Solve for x
    x = 10,190,714,911.63/103,563.19
  6. Step 6: Final answer
    x = 98,400.94

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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.