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Finding the Fourth Proportional to 186,035.60, 279,139.80 and 97,389.20

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Solution

The fourth proportional to 186,035.60, 279,139.80 and 97,389.20 is: 146,129.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,035.60 : 279,139.80 = 97,389.20 : x
  2. Step 2: Convert to fraction form
    186,035.60/279,139.80 = 97,389.20/x
  3. Step 3: Cross multiply
    186,035.60x = 279,139.80 × 97,389.20
  4. Step 4: Simplify right side
    186,035.60x = 27,185,201,810.16
  5. Step 5: Solve for x
    x = 27,185,201,810.16/186,035.60
  6. Step 6: Final answer
    x = 146,129.03

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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.