Home / 156,852.36-235,050.12-72,638.28

Finding the Fourth Proportional to 156,852.36, 235,050.12 and 72,638.28

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Solution

The fourth proportional to 156,852.36, 235,050.12 and 72,638.28 is: 108,851.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,852.36 : 235,050.12 = 72,638.28 : x
  2. Step 2: Convert to fraction form
    156,852.36/235,050.12 = 72,638.28/x
  3. Step 3: Cross multiply
    156,852.36x = 235,050.12 × 72,638.28
  4. Step 4: Simplify right side
    156,852.36x = 17,073,636,430.59
  5. Step 5: Solve for x
    x = 17,073,636,430.59/156,852.36
  6. Step 6: Final answer
    x = 108,851.64

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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.