Home / 133,012.02-183,498.66-87,631.77

Finding the Fourth Proportional to 133,012.02, 183,498.66 and 87,631.77

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Solution

The fourth proportional to 133,012.02, 183,498.66 and 87,631.77 is: 120,893.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,012.02 : 183,498.66 = 87,631.77 : x
  2. Step 2: Convert to fraction form
    133,012.02/183,498.66 = 87,631.77/x
  3. Step 3: Cross multiply
    133,012.02x = 183,498.66 × 87,631.77
  4. Step 4: Simplify right side
    133,012.02x = 16,080,312,368.43
  5. Step 5: Solve for x
    x = 16,080,312,368.43/133,012.02
  6. Step 6: Final answer
    x = 120,893.68

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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.