Home / 156,814.16-216,435.09-93,139.65

Finding the Fourth Proportional to 156,814.16, 216,435.09 and 93,139.65

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Solution

The fourth proportional to 156,814.16, 216,435.09 and 93,139.65 is: 128,551.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,814.16 : 216,435.09 = 93,139.65 : x
  2. Step 2: Convert to fraction form
    156,814.16/216,435.09 = 93,139.65/x
  3. Step 3: Cross multiply
    156,814.16x = 216,435.09 × 93,139.65
  4. Step 4: Simplify right side
    156,814.16x = 20,158,688,530.32
  5. Step 5: Solve for x
    x = 20,158,688,530.32/156,814.16
  6. Step 6: Final answer
    x = 128,551.46

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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.