Home / 155,931.60-233,498.88-85,733.76

Finding the Fourth Proportional to 155,931.60, 233,498.88 and 85,733.76

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Solution

The fourth proportional to 155,931.60, 233,498.88 and 85,733.76 is: 128,381.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,931.60 : 233,498.88 = 85,733.76 : x
  2. Step 2: Convert to fraction form
    155,931.60/233,498.88 = 85,733.76/x
  3. Step 3: Cross multiply
    155,931.60x = 233,498.88 × 85,733.76
  4. Step 4: Simplify right side
    155,931.60x = 20,018,736,938.19
  5. Step 5: Solve for x
    x = 20,018,736,938.19/155,931.60
  6. Step 6: Final answer
    x = 128,381.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.