Home / 260,683.02-391,055.31-83,127.78

Finding the Fourth Proportional to 260,683.02, 391,055.31 and 83,127.78

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Solution

The fourth proportional to 260,683.02, 391,055.31 and 83,127.78 is: 124,701.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,683.02 : 391,055.31 = 83,127.78 : x
  2. Step 2: Convert to fraction form
    260,683.02/391,055.31 = 83,127.78/x
  3. Step 3: Cross multiply
    260,683.02x = 391,055.31 × 83,127.78
  4. Step 4: Simplify right side
    260,683.02x = 32,507,559,777.51
  5. Step 5: Solve for x
    x = 32,507,559,777.51/260,683.02
  6. Step 6: Final answer
    x = 124,701.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.