Home / 156,929.04-216,557.52-85,307.22

Finding the Fourth Proportional to 156,929.04, 216,557.52 and 85,307.22

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Solution

The fourth proportional to 156,929.04, 216,557.52 and 85,307.22 is: 117,721.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,929.04 : 216,557.52 = 85,307.22 : x
  2. Step 2: Convert to fraction form
    156,929.04/216,557.52 = 85,307.22/x
  3. Step 3: Cross multiply
    156,929.04x = 216,557.52 × 85,307.22
  4. Step 4: Simplify right side
    156,929.04x = 18,473,920,001.29
  5. Step 5: Solve for x
    x = 18,473,920,001.29/156,929.04
  6. Step 6: Final answer
    x = 117,721.49

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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.