Home / 153,480.02-211,808.81-85,496.98

Finding the Fourth Proportional to 153,480.02, 211,808.81 and 85,496.98

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Solution

The fourth proportional to 153,480.02, 211,808.81 and 85,496.98 is: 117,989.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,480.02 : 211,808.81 = 85,496.98 : x
  2. Step 2: Convert to fraction form
    153,480.02/211,808.81 = 85,496.98/x
  3. Step 3: Cross multiply
    153,480.02x = 211,808.81 × 85,496.98
  4. Step 4: Simplify right side
    153,480.02x = 18,109,013,276.61
  5. Step 5: Solve for x
    x = 18,109,013,276.61/153,480.02
  6. Step 6: Final answer
    x = 117,989.38

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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.