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Finding the Fourth Proportional to 124,420.60, 171,703.01 and 69,973.81

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Solution

The fourth proportional to 124,420.60, 171,703.01 and 69,973.81 is: 96,565.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,420.60 : 171,703.01 = 69,973.81 : x
  2. Step 2: Convert to fraction form
    124,420.60/171,703.01 = 69,973.81/x
  3. Step 3: Cross multiply
    124,420.60x = 171,703.01 × 69,973.81
  4. Step 4: Simplify right side
    124,420.60x = 12,014,713,798.17
  5. Step 5: Solve for x
    x = 12,014,713,798.17/124,420.60
  6. Step 6: Final answer
    x = 96,565.31

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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.