Home / 119,420.64-164,807.40-65,707.02

Finding the Fourth Proportional to 119,420.64, 164,807.40 and 65,707.02

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Solution

The fourth proportional to 119,420.64, 164,807.40 and 65,707.02 is: 90,679.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,420.64 : 164,807.40 = 65,707.02 : x
  2. Step 2: Convert to fraction form
    119,420.64/164,807.40 = 65,707.02/x
  3. Step 3: Cross multiply
    119,420.64x = 164,807.40 × 65,707.02
  4. Step 4: Simplify right side
    119,420.64x = 10,829,003,127.95
  5. Step 5: Solve for x
    x = 10,829,003,127.95/119,420.64
  6. Step 6: Final answer
    x = 90,679.49

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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.