Home / 121,389.02-167,525.71-70,419.16

Finding the Fourth Proportional to 121,389.02, 167,525.71 and 70,419.16

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Solution

The fourth proportional to 121,389.02, 167,525.71 and 70,419.16 is: 97,183.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,389.02 : 167,525.71 = 70,419.16 : x
  2. Step 2: Convert to fraction form
    121,389.02/167,525.71 = 70,419.16/x
  3. Step 3: Cross multiply
    121,389.02x = 167,525.71 × 70,419.16
  4. Step 4: Simplify right side
    121,389.02x = 11,797,019,181.74
  5. Step 5: Solve for x
    x = 11,797,019,181.74/121,389.02
  6. Step 6: Final answer
    x = 97,183.58

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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.