Home / 154,364.34-212,818.59-111,307.80

Finding the Fourth Proportional to 154,364.34, 212,818.59 and 111,307.80

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Solution

The fourth proportional to 154,364.34, 212,818.59 and 111,307.80 is: 153,457.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,364.34 : 212,818.59 = 111,307.80 : x
  2. Step 2: Convert to fraction form
    154,364.34/212,818.59 = 111,307.80/x
  3. Step 3: Cross multiply
    154,364.34x = 212,818.59 × 111,307.80
  4. Step 4: Simplify right side
    154,364.34x = 23,688,369,052.00
  5. Step 5: Solve for x
    x = 23,688,369,052.00/154,364.34
  6. Step 6: Final answer
    x = 153,457.52

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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.