Home / 141,390.24-212,085.40-66,455.36

Finding the Fourth Proportional to 141,390.24, 212,085.40 and 66,455.36

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Solution

The fourth proportional to 141,390.24, 212,085.40 and 66,455.36 is: 99,683.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,390.24 : 212,085.40 = 66,455.36 : x
  2. Step 2: Convert to fraction form
    141,390.24/212,085.40 = 66,455.36/x
  3. Step 3: Cross multiply
    141,390.24x = 212,085.40 × 66,455.36
  4. Step 4: Simplify right side
    141,390.24x = 14,094,211,607.74
  5. Step 5: Solve for x
    x = 14,094,211,607.74/141,390.24
  6. Step 6: Final answer
    x = 99,683.06

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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.