Home / 153,380.02-211,663.94-85,395.23

Finding the Fourth Proportional to 153,380.02, 211,663.94 and 85,395.23

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Solution

The fourth proportional to 153,380.02, 211,663.94 and 85,395.23 is: 117,845.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,380.02 : 211,663.94 = 85,395.23 : x
  2. Step 2: Convert to fraction form
    153,380.02/211,663.94 = 85,395.23/x
  3. Step 3: Cross multiply
    153,380.02x = 211,663.94 × 85,395.23
  4. Step 4: Simplify right side
    153,380.02x = 18,075,090,839.01
  5. Step 5: Solve for x
    x = 18,075,090,839.01/153,380.02
  6. Step 6: Final answer
    x = 117,845.15

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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.