Home / 118,403.56-163,398.36-64,689.22

Finding the Fourth Proportional to 118,403.56, 163,398.36 and 64,689.22

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Solution

The fourth proportional to 118,403.56, 163,398.36 and 64,689.22 is: 89,271.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,403.56 : 163,398.36 = 64,689.22 : x
  2. Step 2: Convert to fraction form
    118,403.56/163,398.36 = 64,689.22/x
  3. Step 3: Cross multiply
    118,403.56x = 163,398.36 × 64,689.22
  4. Step 4: Simplify right side
    118,403.56x = 10,570,112,457.68
  5. Step 5: Solve for x
    x = 10,570,112,457.68/118,403.56
  6. Step 6: Final answer
    x = 89,271.91

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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.