Home / 153,280.02-211,507.86-85,280.94

Finding the Fourth Proportional to 153,280.02, 211,507.86 and 85,280.94

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Solution

The fourth proportional to 153,280.02, 211,507.86 and 85,280.94 is: 117,677.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,280.02 : 211,507.86 = 85,280.94 : x
  2. Step 2: Convert to fraction form
    153,280.02/211,507.86 = 85,280.94/x
  3. Step 3: Cross multiply
    153,280.02x = 211,507.86 × 85,280.94
  4. Step 4: Simplify right side
    153,280.02x = 18,037,589,118.19
  5. Step 5: Solve for x
    x = 18,037,589,118.19/153,280.02
  6. Step 6: Final answer
    x = 117,677.37

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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.