Home / 125,731.02-173,510.50-72,015.98

Finding the Fourth Proportional to 125,731.02, 173,510.50 and 72,015.98

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Solution

The fourth proportional to 125,731.02, 173,510.50 and 72,015.98 is: 99,383.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,731.02 : 173,510.50 = 72,015.98 : x
  2. Step 2: Convert to fraction form
    125,731.02/173,510.50 = 72,015.98/x
  3. Step 3: Cross multiply
    125,731.02x = 173,510.50 × 72,015.98
  4. Step 4: Simplify right side
    125,731.02x = 12,495,528,570.92
  5. Step 5: Solve for x
    x = 12,495,528,570.92/125,731.02
  6. Step 6: Final answer
    x = 99,383.02

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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.