Home / 113,329.84-156,459.24-86,259.76

Finding the Fourth Proportional to 113,329.84, 156,459.24 and 86,259.76

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Solution

The fourth proportional to 113,329.84, 156,459.24 and 86,259.76 is: 119,087.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,329.84 : 156,459.24 = 86,259.76 : x
  2. Step 2: Convert to fraction form
    113,329.84/156,459.24 = 86,259.76/x
  3. Step 3: Cross multiply
    113,329.84x = 156,459.24 × 86,259.76
  4. Step 4: Simplify right side
    113,329.84x = 13,496,136,492.18
  5. Step 5: Solve for x
    x = 13,496,136,492.18/113,329.84
  6. Step 6: Final answer
    x = 119,087.23

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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.