Home / 126,547.34-174,669.96-78,772.32

Finding the Fourth Proportional to 126,547.34, 174,669.96 and 78,772.32

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Solution

The fourth proportional to 126,547.34, 174,669.96 and 78,772.32 is: 108,727.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,547.34 : 174,669.96 = 78,772.32 : x
  2. Step 2: Convert to fraction form
    126,547.34/174,669.96 = 78,772.32/x
  3. Step 3: Cross multiply
    126,547.34x = 174,669.96 × 78,772.32
  4. Step 4: Simplify right side
    126,547.34x = 13,759,157,983.51
  5. Step 5: Solve for x
    x = 13,759,157,983.51/126,547.34
  6. Step 6: Final answer
    x = 108,727.36

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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.