Home / 156,901.34-216,526.05-85,281.36

Finding the Fourth Proportional to 156,901.34, 216,526.05 and 85,281.36

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Solution

The fourth proportional to 156,901.34, 216,526.05 and 85,281.36 is: 117,689.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,901.34 : 216,526.05 = 85,281.36 : x
  2. Step 2: Convert to fraction form
    156,901.34/216,526.05 = 85,281.36/x
  3. Step 3: Cross multiply
    156,901.34x = 216,526.05 × 85,281.36
  4. Step 4: Simplify right side
    156,901.34x = 18,465,636,019.43
  5. Step 5: Solve for x
    x = 18,465,636,019.43/156,901.34
  6. Step 6: Final answer
    x = 117,689.48

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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.