Home / 156,031.26-215,322.95-84,411.06

Finding the Fourth Proportional to 156,031.26, 215,322.95 and 84,411.06

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Solution

The fourth proportional to 156,031.26, 215,322.95 and 84,411.06 is: 116,487.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,031.26 : 215,322.95 = 84,411.06 : x
  2. Step 2: Convert to fraction form
    156,031.26/215,322.95 = 84,411.06/x
  3. Step 3: Cross multiply
    156,031.26x = 215,322.95 × 84,411.06
  4. Step 4: Simplify right side
    156,031.26x = 18,175,638,029.77
  5. Step 5: Solve for x
    x = 18,175,638,029.77/156,031.26
  6. Step 6: Final answer
    x = 116,487.16

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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.