Home / 138,313.02-190,875.75-84,597.06

Finding the Fourth Proportional to 138,313.02, 190,875.75 and 84,597.06

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Solution

The fourth proportional to 138,313.02, 190,875.75 and 84,597.06 is: 116,746.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,313.02 : 190,875.75 = 84,597.06 : x
  2. Step 2: Convert to fraction form
    138,313.02/190,875.75 = 84,597.06/x
  3. Step 3: Cross multiply
    138,313.02x = 190,875.75 × 84,597.06
  4. Step 4: Simplify right side
    138,313.02x = 16,147,527,275.30
  5. Step 5: Solve for x
    x = 16,147,527,275.30/138,313.02
  6. Step 6: Final answer
    x = 116,746.26

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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.