Home / 156,282.48-215,681.40-88,307.28

Finding the Fourth Proportional to 156,282.48, 215,681.40 and 88,307.28

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Solution

The fourth proportional to 156,282.48, 215,681.40 and 88,307.28 is: 121,870.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,282.48 : 215,681.40 = 88,307.28 : x
  2. Step 2: Convert to fraction form
    156,282.48/215,681.40 = 88,307.28/x
  3. Step 3: Cross multiply
    156,282.48x = 215,681.40 × 88,307.28
  4. Step 4: Simplify right side
    156,282.48x = 19,046,237,780.59
  5. Step 5: Solve for x
    x = 19,046,237,780.59/156,282.48
  6. Step 6: Final answer
    x = 121,870.59

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1.5x scale

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.