Home / 129,374.08-178,477.23-93,507.28

Finding the Fourth Proportional to 129,374.08, 178,477.23 and 93,507.28

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Solution

The fourth proportional to 129,374.08, 178,477.23 and 93,507.28 is: 128,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,374.08 : 178,477.23 = 93,507.28 : x
  2. Step 2: Convert to fraction form
    129,374.08/178,477.23 = 93,507.28/x
  3. Step 3: Cross multiply
    129,374.08x = 178,477.23 × 93,507.28
  4. Step 4: Simplify right side
    129,374.08x = 16,688,920,319.23
  5. Step 5: Solve for x
    x = 16,688,920,319.23/129,374.08
  6. Step 6: Final answer
    x = 128,997.40

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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.