Home / 132,751.72-183,196.64-72,322.20

Finding the Fourth Proportional to 132,751.72, 183,196.64 and 72,322.20

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Solution

The fourth proportional to 132,751.72, 183,196.64 and 72,322.20 is: 99,804.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,751.72 : 183,196.64 = 72,322.20 : x
  2. Step 2: Convert to fraction form
    132,751.72/183,196.64 = 72,322.20/x
  3. Step 3: Cross multiply
    132,751.72x = 183,196.64 × 72,322.20
  4. Step 4: Simplify right side
    132,751.72x = 13,249,184,037.41
  5. Step 5: Solve for x
    x = 13,249,184,037.41/132,751.72
  6. Step 6: Final answer
    x = 99,804.24

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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.