Home / 117,155.21-161,673.90-63,440.23

Finding the Fourth Proportional to 117,155.21, 161,673.90 and 63,440.23

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Solution

The fourth proportional to 117,155.21, 161,673.90 and 63,440.23 is: 87,547.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,155.21 : 161,673.90 = 63,440.23 : x
  2. Step 2: Convert to fraction form
    117,155.21/161,673.90 = 63,440.23/x
  3. Step 3: Cross multiply
    117,155.21x = 161,673.90 × 63,440.23
  4. Step 4: Simplify right side
    117,155.21x = 10,256,628,751.23
  5. Step 5: Solve for x
    x = 10,256,628,751.23/117,155.21
  6. Step 6: Final answer
    x = 87,547.35

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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.