Home / 124,425.40-171,637.72-86,207.32

Finding the Fourth Proportional to 124,425.40, 171,637.72 and 86,207.32

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Solution

The fourth proportional to 124,425.40, 171,637.72 and 86,207.32 is: 118,918.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,425.40 : 171,637.72 = 86,207.32 : x
  2. Step 2: Convert to fraction form
    124,425.40/171,637.72 = 86,207.32/x
  3. Step 3: Cross multiply
    124,425.40x = 171,637.72 × 86,207.32
  4. Step 4: Simplify right side
    124,425.40x = 14,796,427,852.11
  5. Step 5: Solve for x
    x = 14,796,427,852.11/124,425.40
  6. Step 6: Final answer
    x = 118,918.07

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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.